“…We have been investigating chalcopyrite-based room temperature ferromagnetic semiconductors Zn].,Mn,GeP2 and Cdl-,Mn,GePz [I]. In the previous study, we succeeded in preparation of MnGePa (x=l in 111.,Mn,GeP2 series) films on GaAs and InP substrates using molecular beam epitaxy (MBE) [2]. Magnetic studies revealcd that the MnGePz film also shows room temperature ferromagnetism with Tc=320K [3].…”